It looks like Dev has finalized her pre-Halloween plans…

The 22-year-old Portuguese & Mexican American electropop singer/songwriter has been added to the lineup for the 2012 Voodoo Music and Arts Experience in New Orleans.

It’s the latest festival for the “In The Dark” singer, who will be performing at Lolapalooza in August.

Dev joins other acts for the event, set for October 26-28, including Grammy Award-winning trio Green Day and Neil Young & Crazy Horse.

Other talent previously announced include The Avett Brothers, Jack White and electronic dance music star Skrillex.

Three-day general admission passes cost $175. Tickets are available via the festival’s website.

For the first time, this year’s festival also will offer on-site camping inside New Orleans’ historic City Park.